PMID- 11097877 OWN - NLM STAT- MEDLINE DCOM- 20010215 LR - 20220310 IS - 0099-2240 (Print) IS - 1098-5336 (Electronic) IS - 0099-2240 (Linking) VI - 66 IP - 12 DP - 2000 Dec TI - Community composition of marine bacterioplankton determined by 16S rRNA gene clone libraries and fluorescence in situ hybridization. PG - 5116-22 AB - We determined the compositions of bacterioplankton communities in surface waters of coastal California using clone libraries of 16S rRNA genes and fluorescence in situ hybridization (FISH) in order to compare the community structures inferred from these two culture-independent approaches. The compositions of two clone libraries were quite similar to those of clone libraries of marine bacterioplankton examined by previous studies. Clones from gamma-proteobacteria comprised ca. 28% of the libraries, while approximately 55% of the clones came from alpha-proteobacteria, which dominated the clone libraries. The Cytophaga-Flavobacter group and three others each comprised 10% or fewer of the clone libraries. The community composition determined by FISH differed substantially from the composition implied by the clone libraries. The Cytophaga-Flavobacter group dominated 8 of the 11 communities assayed by FISH, including the two communities assayed using clone libraries. On average only 10% of DAPI (4', 6'-diamidino-2-phenylindole)-stained bacteria were detected by FISH with a probe for alpha-proteobacteria, but 30% of DAPI-stained bacteria appeared to be in the Cytophaga-Flavobacter group as determined by FISH. alpha-Proteobacteria were greatly overrepresented in clone libraries compared to their relative abundance determined by FISH, while the Cytophaga-Flavobacter group was underrepresented in clone libraries. Our data show that the Cytophaga-Flavobacter group can be a numerically dominant component of coastal marine bacterioplankton communities. FAU - Cottrell, M T AU - Cottrell MT AD - College of Marine Studies, University of Delaware, Lewes, Delaware 19958, USA. FAU - Kirchman, D L AU - Kirchman DL LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. PL - United States TA - Appl Environ Microbiol JT - Applied and environmental microbiology JID - 7605801 RN - 0 (DNA Primers) RN - 0 (RNA, Bacterial) RN - 0 (RNA, Ribosomal, 16S) SB - IM MH - Alphaproteobacteria/genetics/isolation & purification MH - Animals MH - Bacteria/*genetics/isolation & purification MH - Base Sequence MH - Cloning, Molecular MH - Cytophaga/genetics/isolation & purification MH - DNA Primers/genetics MH - Ecosystem MH - Gammaproteobacteria/genetics/isolation & purification MH - Gene Library MH - Genes, Bacterial MH - In Situ Hybridization, Fluorescence MH - Plankton/*genetics/isolation & purification MH - RNA, Bacterial/*genetics MH - RNA, Ribosomal, 16S/*genetics MH - *Water Microbiology PMC - PMC92431 EDAT- 2000/12/01 11:00 MHDA- 2001/03/03 10:01 PMCR- 2000/12/01 CRDT- 2000/12/01 11:00 PHST- 2000/12/01 11:00 [pubmed] PHST- 2001/03/03 10:01 [medline] PHST- 2000/12/01 11:00 [entrez] PHST- 2000/12/01 00:00 [pmc-release] AID - 0846 [pii] AID - 10.1128/AEM.66.12.5116-5122.2000 [doi] PST - ppublish SO - Appl Environ Microbiol. 2000 Dec;66(12):5116-22. doi: 10.1128/AEM.66.12.5116-5122.2000.